"Seychelles signed a unique deal in 2015: almost $22m (£16.8m) of its national debt was written off, in exchange for the country doing more to protect its oceans. The “debt for nature” swap involved the US conservation group The Nature Conservancy (TNC) buying the debt, in exchange for a promise to create 13 new marine protected areas (MPAs)."
Very interesting deal that occurred. The country essentially got paid to build marine protected areas and help improve conservation efforts.